ABB ACS880-17 - Page 203

Parameters 203
20.23 Positive speed
enable
Selects the source of the positive speed enable command.
1 = Positive speed enabled.
0 = Positive speed interpreted as zero speed reference. In the
figure below, 23.01 Speed ref ramp input is set to zero after
the positive speed enable signal has cleared.
Actions in different control modes:
Speed control: Speed reference is set to zero and the motor
ramps down along the currently active deceleration ramp. The
drive keeps modulating. The rush controller prevents
additional torque terms from running the motor in the positive
direction.
Torque control: The rush controller monitors the rotation
direction of the motor.
Selected
Not selected 0. 0
Selected 1. 1
DI1 Digital input DI1 (10.02 DI delayed status, bit 0). 2
DI2 Digital input DI2 (10.02 DI delayed status, bit 1). 3
DI3 Digital input DI3 (10.02 DI delayed status, bit 2). 4
DI4 Digital input DI4 (10.02 DI delayed status, bit 3). 5
DI5 Digital input DI5 (10.02 DI delayed status, bit 4). 6
DI6 Digital input DI6 (10.02 DI delayed status, bit 5). 7
DIO1 Digital input/output DIO1 (11.02 DIO delayed status, bit 0). 10
DIO2 Digital input/output DIO2 (11.02 DIO delayed status, bit 1). 11
Other [bit] Source selection (see Terms and abbreviations on page 114). -
20.24 Negative speed
enable
Selects the source of the negative speed reference enable
command. See parameter 20.23 Positive speed enable.
Selected
No. Name/Value Description Def/FbEq16
20.23 Positive speed enable
20.24 Negative speed enable
23.01 Speed ref ramp input
01.01 Motor speed used